Stepped shaft clamping fixture

Abstract

The utility model relates to the field of machine tool parts especially is involved in a kind of stepped shaft clamping fixture, it includes bottom plate, the bottom plate is equipped with mounting seat, the first telescopic cavity is equipped in the mounting seat, the centre is equipped in the first telescopic cavity, the second telescopic cavity that a plurality of with the first telescopic cavity intercommunication is equipped in the mounting seat, the transmission pin is equipped in the second telescopic cavity, a plurality of the second telescopic cavity intercommunication.The mounting seat is equipped with sealing groove on the side towards the bottom plate, the sealing ring is equipped in the sealing groove.The utility model is pushed by hydraulic oil and is telescoped in different direction transmission pin, so that transmission pin on different reverse and blank are evenly contacted as far as possible, and the clamping stability to blank is improved.

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